This paper describes research that investigates the use of a technology designed to support young children's collaborative artifact creation in outdoor environments. Collaboration while creating knowledge artifacts is an important part of children's learning, yet it can be limited while exploring outdoors. The construction of a joint representation often occurs in the classroom after the experience, where further investigation and observation of the environment is not possible. This paper describes a research study where collaborative technology was developed, used by children, and evaluated in an authentic setting --- a U.S. National Park.